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Surface-confined spiral state with a doubled magnetic period in Cu2OSeO3
Magnetism in solid materials originates from tiny atomic “compasses” called electron spins. In many magnetically ordered compounds, these spins simply align parallel or antiparallel to each other. However, in more complex systems they can arrange into ...
Neue Einblicke in 3D-gedruckte Materialien für künftige Fusionsreaktoren
Röntgen- und Neutronenexperimente liefern wertvolle Hinweise.
AiiDAlab: Eine Software bringt die Forschung voran
Die Software AiiDAlab wurde für Computersimulationen in der Materialforschung entwickelt. Nun zeigt sich: Sie hilft auch weit darüber hinaus, beispielsweise in der Atmosphärenforschung, bei der Steuerung von Experimenten und in der Lehre.
Alkali-Metal Interlocking of 2D V4O10 Sheets Defines Discretized Interlayer Shear Relationships
Low-dimensional materials manifest structural anisotropy, quantum confinement, and tightly bound excitonic states, which make them attractive building blocks that can be assembled within three-dimensional laterally stitched heterostructures, stacked van der Waals solids, and complex moiré superlattices ...
Cascade of Spin Moiré Superlattices with In-Plane Field in Triangular Lattice Semimetal EuAg4Sb2
EuAg4Sb2 is a rhombohedral europium triangular lattice material that exhibits a rich phase diagram of spin moiré superlattices (SMS) and single-q magnetic phases. In this paper, we characterize ...
Vanishing ordered moment in the frustrated triangular lattice antiferromagnet CuNdO2
The steady decline of neutron imaging (NI) facilities—driven in part by the shutdown of several research reactors—has increased the need to maximize the use of existing infrastructure. In this context, a collaborative effort between PSI-CNM, PSI-NES, and EPFL-LRS has led to the development ...
Collaborative Development of a New Neutron Imaging Beamline at the Zero-Power CROCUS Reactor
The steady decline of neutron imaging (NI) facilities—driven in part by the shutdown of several research reactors—has increased the need to maximize the use of existing infrastructure. In this context, a collaborative effort between PSI-CNM, PSI-NES, and EPFL-LRS has led to the development ...
Green biomass as a sustainable source of protein
The food industry is increasingly focusing on sustainable products. Proteins from green biomass are a promising option, as a research team involving the MLZ has discovered. These can be used, for example, as stabilisers in emulsions, such as in plant-based alternatives to yogurt, milk, ice cream, or cheese.
Characterization of Stable NiOx/ SrTaOxNy Bilayers Boosting the Oxygen Evolution Reaction for Solar Water Splitting
SrTaOxNy (STON) is a well-known visible light-responsive semiconductor with ideally located band edges that allow the operability of overall water splitting. Like many oxynitrides, STON shows evidence of detrimental physicochemical changes under oxygen evolution reaction (OER) conditions involving strong caustic electrolytes. ...
Resolving Complex Multiscale Structure of Magneto- and Electroactive Polymer Composites With an Ionic Liquid
A multiscale understanding of the structure of ionogels – nanoparticle-free polymer composites incorporating ionic liquids – is essential for enhancing their macroscopic functional properties and unlocking their potential in critical applications such as energy storage, sensing, and actuation. We establish ...
Pressure and oxygen-isotope substitution on density-wave transitions in La4Ni3O10
Understanding the interplay between magnetism and superconductivity in nickelate systems is a key objective in condensed matter physics. Gaining microscopic insights into magnetism—particularly as it emerges near superconductivity—requires a synergistic approach that combines complementary experimental techniques with controlled tuning of external parameters. In this paper, we present ...
Powder-level carbide modification controls HIP grain growth and enhances fatigue in reused additively manufactured superalloy
Inconel 718 dominates laser powder bed fusion (PBF-LB/M) builds as the benchmark Ni superalloy for its γ′/γ″ hardenability, weldability, and qualification pedigree, yet its fatigue resistance remains limited by porosity, tensile residual stresses, and microstructural heterogeneity ...
Magnetic Signature of Chiral Phonons Revealed by Neutron Spectroscopy in Ferrimagnetic Fe1.75Zn0.25Mo3O8
Lattice vibrations can carry angular momentum and magnetic moments under broken inversion or time-reversal symmetry, forming so-called chiral phonons. While such excitations have been explored in nonmagnetic systems via optical probes, their direct detection in magnetic materials and coupling to spin excitations remain largely unexplored. Here, using neutron spectroscopy, ...
Topological metal-insulator transition within the ferromagnetic state
A major challenge in condensed matter physics is integrating topological phenomena with correlated electron physics to leverage both types of states for next-generation quantum devices. Metal-insulator transitions are central to bridging these two domains while simultaneously serving as on-off switches for electronic states. Here, we demonstrate ...
Wie Wasserstoff Titanimplantate beeinflusst
Forschende untersuchen an der Schweizer Spallations-Neutronenquelle SINQ, wie sich medizinische Implantate im Körper verändern.
Room-Temperature Magnetic Skyrmions and Intrinsic Anomalous Hall Effect in a Nodal-Line Kagomé Ferromagnet MnRhP
Topological magnetic semimetals with kagomé lattices have attracted significant attention due to their nontrivial electronic band structures and pronounced electromagnetic responses. The search for kagomé-lattice topological semimetals exhibiting magnetic ordering above room temperature is essential ...
Low-frequency electrochemical pulsing to manage flooding and salt precipitation in zero-gap CO2-to-ethylene electrolyzers
The electrochemical conversion of CO2 to ethylene offers a promising approach to expand manufacturing of commodity chemicals and fuels. Specifically, ethylene is a critical precursor for polyethylene a $240B industry. Expanding productivity ...
Investigating the hidden content of Tibetan bronze statues using modern neutron imaging techniques
Bronze statues hold deep significance in Buddhism and Bon, often containing relics sealed within their hollow interiors. Traditional scholarly methods, such iconographic analysis, cannot access the hidden contents of these statues without risking physical damage. This study proposes ...
Predicting component lifetimes in nuclear facilities
For 30 years, experiments have been providing unique insight into how metals and ceramics degrade under high-energy proton bombardment.
Anisotropic Band-Split Magnetism in Magnetostrictive CoFe2O4
Single crystal spinel CoFe₂O₄ exhibits the largest room-temperature saturation magnetostriction among non-rare-earth compounds and a high Curie temperature (T₍c₎ ∼ 780 K), properties that are critical to a wide range of industrial and medical applications. Neutron spectroscopy ...
Operando neutron imaging of an alkaline electrolysis cell for mapping gas distributions
Optimizing hydrogen and oxygen transport within porous electrodes is essential for improving the efficiency of industrial alkaline electrolyzers. In this study, we utilize operando dynamic neutron radiographic measurements to investigate ...
Spin-Disorder-Induced Angular Anisotropy in Polarized Magnetic Neutron Scattering
We experimentally report a hitherto unseen angular anisotropy in the polarized small-angle neutron scattering (SANS) cross section of a magnetically strongly inhomogeneous material ...
Single-chain polymer nanoparticles for oil solubilization
We report on the oil solubilization of amphiphilic single chain nanoparticles (SCNPs) based on random copolymers composed of oligo(ethyleneglycol) methacrylate (OEGMA) and anthracene methacrylate (AnMA). Small-angle X-ray scattering (SAXS) combined with molecular dynamics simulations reveal ...
Hydrogen bonding exacerbates viscoelasticity of amino acid– and betaine surfactant self-assemblies
Many day-to-day materials rely on formulations of surfactants to control flow, texture and application. Inspired by the pairing of bases between DNA strands, we demonstrate enhanced control ...
In-situ neutron tomography study of a dehydrating and hydrating packed bed for thermochemical heat storage
To study the heat and water vapor transport and reaction kinetics in a packed bed of thermo-chemical material on both reactor and tablet level, an in-situ neutron imaging study of a dehydrating and subsequently hydrating packed bed consisting of cylindrical K2 CO3 tablets was performed at the Paul Scherrer Institute ...
Field-Induced Magnon Decay, Magnon Shadows, and Rotonlike Excitations in the Honeycomb Antiferromagnet YbBr3
The search for new quantum many-body phenomena in magnetic materials has a strong focus on highly frustrated systems and the resulting quantum spin-liquid state. However, even unfrustrated magnetic materials show a multitude of unconventional features in their spin excitation spectra. By using the synergy of ...
Generating structured foam via flowing through a wire array
Efficient manufacturing methods could unlock foams with tailored, anisotropic properties. Conventional foam production methods rely on the self-arrangement of bubbles, typically leading to isotropic materials, or involve intricate additive layering processes. This study presents a simple, passive technique to modify the foam structure. A set of thin parallel wires ...
Steering magnetic textures with electric fields
Neutrons reveal a new way to control magnetism at the nanoscale
Ein goldener Winzling aus der Römerzeit
David Mannes vom PSI lüftete mithilfe von Neutronen das Geheimnis eines faszinierenden archäologischen Fundstücks.
Prestigeträchtige Förderung für drei Forschungsprojekte am PSI
Beton, chemische Katalyse und die Suche nach neuer Physik – für diese Forschungsthemen erhalten drei PSI-Forschende je einen Grant des Schweizerischen Nationalfonds.
Texture and residual stress evolution during 3D printing
Discover how advanced neutron diffraction sheds light on the evolution of stress and texture in 3D-printed duplex stainless steel.
Together for Science with Neutrons, Muons and X-rays
Strategic partnership between research facilities in UK and Switzerland will create new capabilities to address global challenges using neutrons, muons and X-rays.
Leistungsfähige Lithium-Luft-Batterien alltagstauglich machen
Mit Neutronenstrahlen und Synchrotronlicht die chemischen Prozesse in Lithium-Luft-Batterien enthüllt.
Ursache für verstopfte Spritzennadeln gefunden
Forschende des PSI und des Technologietransferzentrums ANAXAM finden die Ursache für Verstopfungen bei vorgefüllten Fertigspritzen.
Dichotomous Electrons: Travelling without Moving
Neutron scattering experiments give new understanding of how localized and free-flowing electrons collaborate to create material functionality.
Bessere Batterien für E-Autos
PSI-Forschende machen physikalische und chemische Veränderungen in Batterie-Elektrolyten sichtbar.
Rätsel der Mikrogele gelöst
Forschende des PSI und der Universität Barcelona können das merkwürdige Schrumpfen von Mikrogelen experimentell erklären.
Auto-Bremsen weiter optimieren
Mit Neutronen blicken Forschende des PSI und ANAXAM ins Innere einer Bremse und spüren Potenziale zur Senkung von CO2-Emissionen auf.
Denken in anderen Zeiträumen
Marc Janoschek erklärt die Bedeutung der PSI-Beteiligung an der Europäischen Spallationsquelle.
Wellen auf Kreisbahnen
Energieeffiziente Alternative zur Informationsübertragung mit elektrischem Strom
Das schärfste Neutronenmikroskop der Welt
PSI-Forschende helfen beim Aufbau der Europäischen Spallationsquelle ESS.
Einblick in 3-D: Die Schweizer Spallations-Neutronenquelle SINQ
Was sind Neutronenleiter und wofür braucht es an der SINQ flüssiges Deuterium? Unsere 3-D-Grafik der Schweizer Spallations-Neutronenquelle SINQ gibt Einblicke.
Neuartige und kommende medizinische Radionuklide
Bessere Behandlung von streuenden Tumoren.
Nanowirbel mit besonderer Eigenschaft
Forschende am Paul Scherrer Institut PSI haben besondere Nano-Wirbel in einem Material zum ersten Mal nachgewiesen: sogenannte antiferromagnetische Skyrmionen.
Dem Rätsel der Materie auf der Spur
Forschende haben an der Quelle für ultrakalte Neutronen des PSI eine Eigenschaft des Neutrons so genau wie noch nie vermessen: sein elektrisches Dipolmoment. Denn bis heute wird nach einer Erklärung gesucht, weshalb es nach dem Urknall mehr Materie als Antimaterie gab.
Gut lackierte Geigen spielen länger
Traditionell werden Geigen lackiert, um sie vor Luftfeuchtigkeit und anderen Umwelteinflüssen zu schützen. Ein Wissenschaftler-Team hat am PSI untersucht, welchen Einfluss unterschiedliche Anstriche auf das Instrument haben. Tatsächlich sollte man auf den Lack keinesfalls komplett verzichten.
Der Bedarf an Radionukliden für die Krebstherapie ist gross
Radionuklide eröffnen neue Behandlungswege bei Krebs, die sehr effizient sind. Christian Rüegg, Leiter des Forschungsbereichs Neutronen und Myonen am Paul Scherrer Institut PSI, erklärt, welche Rolle die Schweizer Spallations-Neutronenquelle SINQ des PSI bei der Entwicklung eines entsprechenden Medikaments spielt.
Krebsmedikament aus der Neutronenquelle des PSI
Forschende des PSI stellen an der Neutronenquelle SINQ spezielle Radionuklide her, die bei der Entwicklung neuer und gezielt wirksamer Krebstherapien helfen. Dabei arbeiten sie eng mit den Kliniken des Umlands zusammen.